*{
    margin: 0;
    padding: 0;
}
 
.startPage{
    width:100%;
    z-index: 100;
    height:660px;
    position: absolute;
    top: 0;
    left: 0;
}
.startBtn{
    display: none; 
    background-image: url('img/start.png ');
    height:70px;
    width:70px;
    background-size: 100% 100%;
    cursor: pointer;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin:auto;
    border: 1px solid red;
    cursor: pointer;
}

.wrapper{
    width: 60%;
    height: 650px;
    background-image: url('img/background.png');
    background-size: 100% 100%;
    position:  relative;    
    left: 20%;
    /* border: 2px solid red; */
}
.lift-side{
     width: 20px;
     height:660px;
     position: absolute;
     /* border-right: 10px solid black; */
}
.lift-side img{
    /* display: none; */
    margin-left: 50px;
    margin-top: 50px;
    width:70px;
    border-top-left-radius: 50%;
    border-top-right-radius: 50%;
    border-bottom-left-radius: 50%;
    border-bottom-right-radius: 50%;
    box-shadow:2px 2px 5px 1px rgb(9, 139, 199);
    cursor: pointer;
}
.lift-side img:hover{
    /* box-shadow:2px 2px 5px 1px rgb(9, 139, 199); */
    color:#ddd;
    cursor: pointer;
}
.main{
    position: absolute;
    left:12%;
    width:75%;
    height:100%;
    /* border : 1px solid black; */
}   
.header{
     width:100%;
     height:80px;
     text-align: center;
}
.score{
    line-height: 130px;
    color:rgb(141, 135, 135);
    font-size: 30px;
    font-weight: border;
}
.content{
    position: absolute;
    width:99%;
    height:70.5%;
    left:0%;
    top:13%;
    /* border:2px solid blue; */
}
.loser{
    display: none;
    position: 100%;
    height:100%;
    top: 0;
    left: 0;
}
.con{
    /* display: none; */
    background-image: url('img/gameover.jpg');
    background-size: 100% 100%;
    height:200px;
    width:300px;
    position: absolute;
    margin:auto;
    /* 必须设置四个距离为0 才能用auto */
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    /* border: 1px solid red; */
}
.loserScore{
    display: block; 
    width: 40px;
    height: 30px;
    position: absolute;
    top: 22%;
    left: 75%;
    color:#f40;
    font-size: 30px;
    font-weight: border;
}
.dangqiandefen{
    margin-left: 50px;
    color:#f40;
    font-size: 30px;
}
.loser .con .close {
    display: block;
    z-index: 101;
    position: absolute;
    top: 5%;
    right: 0;
    height: 40px;
    width: 40px;
    /* background-color: red; */
    background-image: url('img/cha.png');
    background-size: 100% 100%;
    cursor: pointer;
    /* border: 1px solid red; */
}
.loser .con .close:hover{
    box-shadow:4px 3px 10px 1px rgb(192, 49, 49);
    border-top-left-radius: 50%;
    border-top-right-radius: 50%;
    border-bottom-left-radius: 50%;
    border-bottom-right-radius: 50%;
}
.food{
    background-image: url('img/apple.png');
    background-size: 100% 100%;
    
}
.head{
    background-image: url('img/head.png');
    background-size: 100% 100%;
}
.body{
    background-image: url('img/body1.png');
    background-size: 100% 100%;
}